Friction Disc; Non-Grassed Areas - Hayter Harrier 48 490E Owner's Handbook Manual

OPERATING THE MOWER

Friction Disc

The cutterblade is driven by the engine via a friction disc to help prevent
damage occurring to the engine crankshaft and cutting mechanism when a
hidden obstruction or overload is encountered.
Always stop the engine when a hidden obstruction or excessive vibration
is encountered. Disconnect the spark plug lead and examine the cutting
mechanism. ALWAYS replace a damaged cutterblade - refer to
"Maintenance".

Non-Grassed Areas

When moving the mower across non-grassed areas, stop the engine and set
the mower to the maximum height of cut to protect the cutting mechanism.
STOP
CS146
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